Brick-kiln.



F. W. MILES.

BRICK KILN.

APPLICATION FILED NOV. 25, 1914.

Patented Nov. 2, 1915.

3 SHEETS-'SHEET 1.

CGLUMIIA PLANOGIAPH :0., WASHINGTON, D. c.

F. w. MILES.

BRICK KILN.

APPLICATION FILED NOV,25.1914.

Patented Nov. 2, 1915.

3 SHEETS-SHEET 2.

COLUMBIA ILANOGRAPH C(LJVASHINGTON, n c.

Patent-ed Nov. 2, 1915.

3 SHEETS-SHEET 3.

4 1- -I I L I I F. W. MILES.

I BRICK KILN. APPLICATION FILED NOV 25. 1914.

I I l K I \1 1 1 IN I an IIII LIII.IL||I I r I I I I I I I II I I I I III I I I I I I j I I I I I I I I 1 I I 1 I 4 .Be it: known that I, FRA K LVVILLIAM ANK W M 'L Q 0 mmmsswa; isms-Tamama we BRICK GQMPAN YyOF ST. LOUI$,1vI-ISSOURI, A CORPORATION OF MIS OURI-Q nnmox-xiniv'. a

lball'whom z'tmay conserve."

Mrmis a citizen of the United States of America, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements Brick-Kilnspof" which :the following is a specification.

This invention relates to kilns for burn ing brick tiles and other earthenware products and has for its primary objectthe pro vision of a kiln of the characteriset forth which shall be adapted for use Wlth'prmx g theybody of the kiln, thereis provided a ducer gas or fuel of similar nature. V

- The primary object of this lIIVGIliZlOIl'iS to:

provide a kiln of the character set forth which shall be adaptedt'o burn the articles placed'therei-n evenly and thoroughly and without waste. i

'A,1il 1I-.tl1'e'r object of this invetion is to provide a kiln adapted at all times to have therethrough a perfect draft insuring the even heating of the A still further object o f this invention is to provide means for causing the combustion of the fu'efin s'l'ichamanner-as-toprevent all smoke issuing from the kiln.

WVith these and other objects in view as will hereinafter appear, this invention consists in the peculiar construction and combination of the various related parts of the brick kiln as hereinafter set forth and more particularly designated in the appended claims.

Referring to the accompanying drawings forming a portion of this specification and wherein similar reference numerals indicate similar parts wherever used; Figure 1 is a vertical section through a kiln embodying my invention; Fig. 2 is a longitudinal vertical section therethrough, and Fig. 3 is a horizontal section showing the, floor plan thereof.

The numeral 4; designates the outer wall of the kiln which may be of any approved type and provided with an arch-roof 5 having therein a plurality of openings 6 adapted to be closed by means of members 7 inserted therein. 7

The floor 8 of the kiln is provided with a plurality of openings 9. These openings are so located and arranged that they com:

Specification of Letters :lfatent; i

the stack 14,thusiproviding equal inlet and outlet openings for the draft which insures" a perfect draft at all times tl'irough the kilni Adgacent the stack-flue 13 and located on either side thereof and separated therefrom by means of walls 15 and 16a1fe air fiues 1 7 and 18 having extending therefrom at suitable -mtervals transverse passages 19 which extend .upwardlyadjacent the side waallof the lnln'as atSZOP and. into the kiln proper.

Atrtha-t point wherethe airflduct '20 enters Ian sre eks cr mes 7 Q Eatented Now Applicationfiledliovemberzi 1914; ser auv syaswf vertical wall -2'1 extending upwardly for a short distance twithin the kiln and forming a pocket-2210mm atqits upper end 23. a

-Upo1 r either side of'the ai r fiues 17 and- 18 are1gas fli 1es 24 and25 adapted-tube fed upwardly extending passageways 2'6 which J by means of short vertioa l extension 27 thereof communicates with the pocket 22 v 'fbi' f t eenthe weir-2r 'andthe areas oftliekiln.

The operation of the-kiln is as follows: The bricks are placed within the kiln body in any suitable manner, care being taken, however, to arrange the plles of bI'lCkS so as not to cover any of thefioor'openings '9.

Gaseous fuel is admitted to the fines 24 and 25 from whence-it passes through the passageways 26 and 27 up into the pocket 22 where it mixes with the vair which has entered through the air flues 17 and 18' and their corresponding passageways 19 and 20. At the pocket 22 formed between the wall 21 and the arch roof 5, the mixture of air and gas is ignited which causes an upwardly arching flame upon either side of the center,

of the kiln, giving an even'distribution of heat and a therefore uniform burning of the bricks or other material placed within;

The location ofthe air flues 17 and 18 upon either side of the central flue 13 is very important. By means of suchlocation the heat from the smoke flue 13 heats the air passing through the air flues' 17 and 18 to a very high temperature, so that when the'air which passes through the connecting. duct-s mixes with the gas within the pocket 22. the heated air causes a rise in temperature of the gas mixing therewith, whichsuperheat ing of the said gas makes the ignition there-.

of easier and the flame correspondingly hotter. By means of this the heat within the kiln is greatly increased, which is a desirable advantage. 1 Y

By means of the construction described the necessity for feeding gas and air to the kiln under pressure is obviated, thus reducing the cost of installation and increasing the efficiency of the kiln.

I realize that considerable variation of the specific details of my invention may be resorted to without departing from the spirit thereof, and it is not my intention to limit myself to the construction herein shown and described but to construe the following claims as broadly as the state of the prior art will permit. I

What I claim as new is:

1. In a kiln, in combination, a chamber having a bottom the upper part of which is perforated throughout, and provided with connecting fiues therebeneath, double side walls forming combustion pockets, means for. conducting gas to said pockets, means in the bottom for conducting air to said pockets whereby combustion takes place between both double side walls at each side of the chambeigand a main flue beneath the perforated bottom communicating with the fines leading from the perforations whereby the products of combustion pass evenly over the material to'be treated from both sides of the chamber and thence out through the pet'- forations in the bottom to said main flue,

said air conducting means leading to the combustion pockets being; relatively close to and substantially parallel with the fines leading from the perforations in the bottom to the main flue.

2. In a kiln, in combination, a chamber having bottom the upper part of which is perforated throughout, and provided with connecting fiues therebeneath, double side walls forming-combustion pockets, means for conducting gas to said pockets, means in the bottom for conductingair to said pockets whereby combustion takes place between both double side walls at each side of the chamber, and a main flue beneath the perforated bottom communicating with the fines leading from the perforations whereby the products of combustion pass evenly over the 7 material to betreated from both sides of the chamber and thence out through the perforations in the bottom to said main fine, 7

said main flue and air conducting means he mg positioned closely adgacent each other 'whereby the air is preliminarily heated be- FRANK WILLIAM MILES.

Witnesses Gno. F. BAKER, A. A. S'roLBERe.

Gopies of this patent may be obtained for five cents each, by addressing" the Commissioner of Patents,

' Washington, I). C. 

